1
; RUN: opt < %s -loop-vectorize -force-vector-interleave=1 -force-vector-width=4 -instcombine -S | FileCheck %s
3
target datalayout = "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64-s0:64:64-f80:128:128-n8:16:32:64-S128"
4
target triple = "x86_64-apple-macosx10.8.0"
6
;CHECK-LABEL: @start_at_nonzero(
7
;CHECK: mul nuw <4 x i32>
9
define i32 @start_at_nonzero(i32* nocapture %a, i32 %start, i32 %end) nounwind uwtable ssp {
11
%cmp3 = icmp slt i32 %start, %end
12
br i1 %cmp3, label %for.body.lr.ph, label %for.end
14
for.body.lr.ph: ; preds = %entry
15
%0 = sext i32 %start to i64
18
for.body: ; preds = %for.body.lr.ph, %for.body
19
%indvars.iv = phi i64 [ %0, %for.body.lr.ph ], [ %indvars.iv.next, %for.body ]
20
%arrayidx = getelementptr inbounds i32, i32* %a, i64 %indvars.iv
21
%1 = load i32, i32* %arrayidx, align 4
22
%mul = mul nuw i32 %1, 333
23
store i32 %mul, i32* %arrayidx, align 4
24
%indvars.iv.next = add i64 %indvars.iv, 1
25
%2 = trunc i64 %indvars.iv.next to i32
26
%cmp = icmp slt i32 %2, %end
27
br i1 %cmp, label %for.body, label %for.end
29
for.end: ; preds = %for.body, %entry